Stringer-support for cars.



No. 785,043. PATENTEDMAR. 14, 1905.

'0. A. LLINDSTRUM.

STRINGER SUPPORT FOR CARS.

APPLICATION rum) JULY 1, 1904.

UNITED STATES Patented March 14, 1905.

PATENT OFFICE.

CHARLES A. LINDSTROM, OF ALLEGHENY, PENNSYLVANIA, ASSIGNOR TO PRESSED STEEL CAR COMPANY, OF PITTSBURG, PENNSYLVANIA, A CORPORATION OF NEW JERSEY.

STRlNGER-SUPPORT FOR CARS- 1 SPECIFICATION forming part of Letters Patent N0. 785,043, dated March 14, 1905.

Application filed July 7,1994. Serial No. 215,696.

To all whom it may concern:

Be it known that I, CHARLEs A. LINDsTRoM, of Allegheny, Allegheny county, Pennsylvania, have invented a new and useful Stringer- Support for Cars, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which Figure 1 is an elevation showing my improved stringer-support. Fig. 2 is a vertical section on the line II II of Fig. 1, and Fig. 3 is a perspective view of the rear of the stringersupport.

Heretofore in steel-car construction in which wooden floors are used and in which it is desirable to have the floor at as low level as possible it has been customary to support the nailing-stringers on separate supporting devices riveted to the diaphragms and placed under each stringer or on a continuous support formed by an ordinary angle-bar. Great difficulty has been experienced in keeping the separate supports at the proper height and in perfect alinement with each other, and where angle-bar supports are used there hasbeen difficulty in supporting the stringers with sufficient firmness and strength to prevent deflection under the heavy loads which are often placed on the car-floor. These difliculties are entirely obviated by my invention.

In the drawings, 2 2 are the stringers, and 3 is the diaphragm to which thestringer-snpport 4 is attached. The stringer-support is made of pressed metal and is of L shape in cross-section, having a vertical member 6, which is applied to the face of the diaphragm and is attached thereto by rivets 5 and a horizontal member'c, which projects outwardly from the diaphragm and beyond the limits of the horizontal flanges 3 thereof. By reason of the presence of these flanges the stringers rest upon the outer portion of the horizontal memberc and a correspondingly great strain is imparted to the stringer-support; but I provide for this by recessing the support at 05, forming thereby downwardly-projecting double-walled flanges which serve as bracing portions and enable the support to bear the vertical stress without deflection. Any desired number of the recesses (Z may be pressed in the support.

As shown in the drawings, the support is of sufficient length to extend under all of the stringers, so that the stringers can readily be set at a uniform height.

If desired, the support may be inverted.

I claim a I 1. In a car-frame the combination with the stringer of a stringer-support of L shape in cross-section extending under a plurality of the stringers and having projections pressed therein to form strengthening member s; substantially as described.

2. In a car-frame the combination with a flanged diaphragm, of a stringer-support angular in cross-section secured to the diaphragm and projecting therefrom beyond the flange thereof, bracing portions for the support, and

a plurality of stringers held by the support; substantially as described. I

In testimony whereof I have hereunto set my hand.

CHARLES A. LINDSTROM. Witnesses: 1

GEo. B. BLEMING, JOHN MILLER. 

